Signal tries not to.Įven if Signal is subject to a subpoena on you and forced to disclose what it knows about you, the company knows almost nothing about you and your Signal activity. Signal also offers other privacy features, including self-destructing (disappearing) messages that will automatically be removed after a period of time.įacebook Messenger collects a lot of data about you, too. But everything on Signal is encrypted, always and by default. Sure, some other messengers offer encrypted messaging as an optional feature. Facebook says it won’t use the content of your messages for advertising, but are you confident that will never change in the future? For example, Facebook has access to everything you say in Facebook Messenger. This is very different from traditional messaging apps. Signal actually created its own encryption protocol for this. The company that operates Signal could not see these messages even if it wanted to. The encryption happens between the individual devices using Signal. Only the people involved in the communication can see them. How (and Why) Signal Is So Private and Secure Eliseu Geisler/Īll communications on Signal-including one-to-one messages, group messages, file transfers, photos, voice calls, and video calls-are end-to-end encrypted. The source code for the project’s client apps and server software is available on GitHub. Only the people in the conversation can see them. Your conversations in Signal are end-to-end encrypted, which means that not even the owners of Signal can monitor them. While Signal has a very familiar interface, it’s very different under the hood. Signal doesn’t try to gather a bunch of data on you or show you advertisements. Unlike Facebook, Signal’s owners aren’t even trying to make money. Instead, Signal is developed by a non-profit foundation and is funded by donations. Signal isn’t owned by a big tech company. You can have group chats with up to 1000 people and group calls with up to eight people.
It’s a messaging app with features like one-to-one messages, groups, stickers, photos, file transfers, voice calls, and even video calls. The user experience of Signal is just like WhatsApp, Facebook Messenger, and other popular chat apps. There’s also a Signal desktop client for Windows, Mac, and Linux. Signal is available for Android, iPhone, and iPad.
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